perlman



L. H. PERLWIAN.

WHEEL.

APPLICATiON FILED JAN.I0,19I7- Patented May 13, M8.

3 SHEETSSHEEI 1- LHUS L. H. PERLMAN.

WHEEL.

APPUCATION FILED mum. nan.

1,303,590. Patented May 13, 1919.

3 SHEETSSHEET 2.

8 awe-144mg L. H. PERLMAN.

WHEEL.

APPLICATION FILED JAN 10, I91].

Patented May 13, 1919.

3 SHEETS-SHEET 3.

wi lwm 00 LOUIS H. PERLMAN, 0F YORK, N. Y.

WHEEL.

Specification of Letters Patent.

Patented May 13, 1919.

Application filed January 10, 1917. Serial No. 14:1,635.

To all whom it may concern:

Be it known that I, LOUIS HFPERLMAN, a citizen of the United States,residing at New York, in the county of New York and State of New York,have invented certain new and useful Improvements in Wheels; and I dohereby declare the following to be a full, clear, and exact descriptionof the invention, such as will enable others skilled in the art to whichit appertains to make and use the same.

This invention relates to improvements in demountable rim wheels such asare especially well adapted for use on automobiles and like vehicles.

The object in view is the provision of means for quickly and eficientlylooking a demountable rim on a wheel in a manner adapting the rim to beeasily and quickly removed while assuring maintenance of the rim in aneffectively tensioned condition while in use on the wheel. p

A further object in view is the provision of means adapted to be carriedby the wheel bod for actuating a demountable rim and shifiiing the sameto and locked on the wheel body. I

With these and further objects in view as will in partl hereinafter bestated and in part'become apparent, the invention comprises certainnovel constructions, combinations and arrangements of parts assubsequently specified and claimed.

In the accompanying drawings,

Figure 1 is a perspective view of a wheel embodying the features of thepresent invention, the rim being shown in section and displaced fromits-operative position on the wheel.

F ig; 2' is an enlarged, detail, fragmentary erspective of varioussections of the wheel ody juxtaposed for indicating the relativeposition of the rim retaining wedges.

Fig. 3 is a similar view of fragments of the demountable rim showing indotted lines the coiiperating rim-carried wedges.

Fig. i is a transverse section taken on planes indicated by line 4-4 ofFig. 2, but taken only through the felly band and demountable rim, thedemountable rim being indicated as mounted upon and in its operativerelation to the felly band.

Fig. 5 is a view similar to Fig. 3 of the same parts seen in an invertedposition.

Fig. 6 isa fragmentary perspective view of a segment of that portion ofthe folly from a position and felly band which carries the demountablerim actuating cam.

Fig. 7 is an inverted plan of the same, parts being broken away.

Fig. 8 is a sectional perspective view of a fragment of the riminverted.

Fig. 9 is a detail, perspective view of the cam shaft operating tool.

Fig. 10 is a plan view of the parts seen in Fig. 8, the actuating cambeing also shown in its operative relation thereto.

Referring to the drawings by numerals, 1 indicates the spokes, 2 thefolly and 3 the felly band of the wheel body which is provided with theusual hub 4. The felly band 3 is provided with the usual supporting stopflange 5 and coiiperatingtherewith for sustaimng a demountable rim,wedge plates 6, 6 are provided on the exterior face of the band 3, theplates 6 being spaced uniformly about the band 3, and being alternatelypositioned adjacent the edges of the hand. There is thus provided aplate 6 near the outer edge of the band and then a plate 6 near theinner edge thereof, and so on about the periphery of the wheel body. Thewedge plates 6 may be formed of material separate from the band andwelded or otherwise fixed thereto, or maybe stamped directly from thematerial of the band itself. Each wedge plate 6 tapers longitudinally inthe direction of the curve of the folly band 3, and in the direction ofdrive of the wheel. In addition to tapering longitudinally, each of theplates6 has its inner edge tapered in a transverse direction, asindicated at 6., whereby each plate 6 provides an inclined surface whichhas two directions of incline, one with respect to the ra dius of thewheel and the other with respect to its circumference. Adapted to bemounted on the wheel is a demountable rim 7 designed for carrying theusual pneumatic or other cushioning tire. The wheel 7 is provided withwedge plates 8 corresponding exactly in size, form and arrangement withthe plates 6 except that each of the plates 8 is conversely tapered bothwith respect to the circumference and the axis of the rim, so that aninclined edge 8' is formed on each plate 8 tapering in the direction ofcurve 'of the rim and inclined with respect to a radial lineproportioned to oppose the taper of the edge 6 of any one plate 6. Theplates 8 are uniformly spaced about the rim and correspond in spacingand location to plie axially onto the wheel body and is rotated thereonthe faces 8 engage the faces 6' and ride upon the same. The rim 7 ismade larger in diameter than the diameter of the outer face of fellyband 3 but smaller in diameter than the flange 5, so that when the rim 7has been positioned as just described and is rotated independently ofthe felly band 8 to the final positionon the wheel body, the contact ofthe faces 8 with the faces 6' will effect a wedging action thrusting therim 7 over into supporting contact with the flange 5 and at the sametime exerting a pressure on the rim 7 tending to expand the same. Whenthe rim has assumed this position, during the course of manipulation, itis locked against reverse movement, and is then in position foroperation.

To effect positioning of rim 7 in its final operative relation to thewheel, it is necessary to force the same to have a slight amount ofrotary movement independent of the wheel body in addition to that whichmay be given manually. To accomplish this result .and to lock the rim inits operative position on the wheel, I provide actuating means seen indetail in Figs. 6 to 10 inclusive. The rim 7 is provided withcam-engaging plates 9, 9, preferably stamped from the material of thebase of the rim, but susceptible of being otherwise formed as desired.

The plates 9 resent curved edges toward each other and are spaced aparta distance adapted to accommodate a cam 10 therebetween, the cam 10being formed with lobes l0 and 10", one designed to strike the edge ofone of the plates 9 when the cam 10 is rotated in one direction forshifting the rim 7 in a direction of rotation one Way for seating therim in its operative position on the wheel body, and the other lobebeing adapted to strike the edge of the other plate 9 when the cam 10 isrotated in the other direction for shiftinq the rim 7 in theoppositedirection for releasing the engagement of the -plates 8 with the plates6 and thereby positioning the rim for being readily removed axially fromthe wheel body. The cam 10 is fixed to a. shaft 11 which extendsradially inward through the felly band 3 and felly 2, and at its innerend is shaped to receive an operating tool adapted to rotate the shaftfor actuatlng the cam 10 for shifting the rim 7 as above stated. Thetoolreceivin end of the shaft 11 may be variously s. 'aped, but ispreferably provided with serrations 12 for receiving a serratedoperatigg tool 13.

Since it is imperative that the rim 7 shall be retained against relativerotation with respect to the wheel in order to remainoperativelyse'ated'on the wheel, itis essential to providefmeans forlocking the rim 7 the plates 6, so that when the rim 7 is ap againstaccidental or undesired relative movement. To this end, the cam 10 isdepended upon to retain the rim in its seated position after seating thesame. To prevent undesirable rotation or accidental rotation of the cam10, the shaft 11 is preferably locked against rotation by the employmentof a locking washer 14 similar in shape to the tool 13 and pivotallyconnected to the felly 2. A spring 15 presses the washer 14 toward thefelly so as to maintain the same in locking engagement with the serratedend 12 of shaft 11. Vhen it is desired to rotate the shaft. 11, thewasher 14 is swung out of engagement with the serrated end 12 againstthe pressure of the spring 15 to the position indicated in dotted linesin Fig. 7, and while held in this position, leaves the shaft 11 free forrotation. The tool 13 is then applied to the serrated end 12 and the cam10 is rotated for releasing the rim 7. A converse operation restores therim to its operative position on the wheel body. Since the applicationof the rim 7 to the wheel body is substantially axially and since aswill be readily understood by those familiar with demountable rimwheels, it is necessary to rock the rim into place by first introducingthe valve stem through the usual valve stem opening, it is desirable tolocate the valve stem opening, as seen at 16, adjacent the point oflocation of the cam 10, so that when the valve stem is introducedthrough the opening 16 the plates 9 will be properly located inoperative relation with respect to the cam 10. The rim 7 is, of course,provided with the valve stem opening 17 located to correspond in spacingwith the location of opening 16 for insuring the proper positioning ofthe plates 9 with respect to the cam 10.

What I claim is 1. In a wheel structure of the demountable rim type, thecombination of a felly band having a supporting stop flange and wedgeplates spaced substantially equidistant about the outer surface of thefelly band and disposed alternately adjacent the outer and inner edgesof the felly band, each wedge plate being formed with an inclined planeexposed in a general direction toward the supporting stop flange, and ademountable rim of greater diameter than the exterior surface of thefelly band but of less diameter than the supporting stop flange, thesaid rim being provided with wedge plates similarin form'ancl relativelocation and correspondingly spaced and each having an inclined planeexposed in a general direction away from the supporting stop flange,

position in engagement with the supporting stop flange when shifted in arotary direction atter contact of said inclined planes.

2. In a Wheel structure ot the demountable rim type, the combination ofa telly band having a supporting stop flange and wedge plates spacedsubstantially equi-dis tant about the outer surtace ot the telly bandand disposed alternately adjacent the outer and inner edges ot the tellyband, each wedge plate being termed with an in clined plane exposed in ageneral direction toward the supporting stop flange, and a demountablerim 0t greater diameter than the exterior surtace of the tellyband butot less diameter than the stop flange, the said rim being provided withWedge plates similar in term and relative location and corre spondinglyspaced and each having an inclined plane exposed in a general directionaway trom the supporting stop flange, the said wedge plates beingproportioned and located tor having the inclined planes ot those ot therim engage the inclined planes o-t those ot the telly band tor causingthe ole mountable rim to be moved to a tensioned position in engagementwith the supporting stop flange when shitted in a rotary direction attercontact ot said inclined planes, and means tor thus shitting thedemountable rim.

lln a wheel structure ot the demonntable rim type, the combination ot atelly hand having a supporting stop flange and wedge plates spacedsubstantially cam-dis being provided with wedge plates similar in termand relative location and correspondingly spaced and each having aniii-- elined plane exposed in a general direction away from thesupporting stop flange, the said wedge plates being proportioned andlocated for having the inclined planes of those of the rim engage theinclined planes ot those ot the telly band tor causing the demountablerim to be moved to a tensioned position in engagement with thesupporting stop flange when shifted in a rotary direction after contact0t said inclined planes, and means tor thus shitting the demountable rimand tor locking the demountable rim against reverse shitting.

4t. in a wheel structure ot the demountable rim type, the combination ofa telly 'terior surtac e ot the telly band but ot less diameter than thestop flange, the said rim.

being provided with Wedge plates similar in term and relative locationand correspondingly spaced and each having an inclined plane exposed ina general direction away trorn the supporting stop flange, the saidwedge plates being proportioned and located tor having the inclinedplanes ot those at the rim engage the inclined planes o t those ot thetelly band tor causing the demountable rim to be moved to a tensionedposition in engagement with the supporting stop flange when shitted inarotary direction atter contact 0t said inclined planes, and a camdisposed. toengage the dismount able rim tor thus shitting thedeinountable rim.

lln testimony whereot l aflir my signa ture in presence 0t twowitnesses.

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